int antallblink = 0;

void setup() {
  Serial.begin(115200);
  pinMode(4, OUTPUT);
  Serial.print("hello");
}

void loop() {
digitalWrite(4,HIGH);
antallblink = antallblink + 1;
  delay(1000);
digitalWrite(4, LOW);
  delay(1000);
Serial.println(antallblink);
}